Marker and transferring device thereof

The invention provides a marker (10). The marker (10) is implanted into a focus of infection or other abnormal tissue parts, and can be easily detected by an imaging technique in the field. The marker (10) comprises a biocompatible high molecular material and a contrast agent; the marker (10) is in a cylinder shape with a star-shaped cross section, and a through hole (11) and a perforating hole (12) are formed in the cylinder. The invention also provides a preparation method of the marker (10) and a device and a method for transferring the marker (10) to a required part. Compared with the prior art, the marker has the advantages that by designing the star-shaped cross section, the marker can be easily identified in a human body; by forming the perforating hole in the marker, the marker can be well combined with the body tissue in the human body, and the easiness in displacement is avoided.